Corrugated sheet piling



Nov. 22, 1932.

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Patented Nov. 1932 UNE l:remue n. 'wrmen'ra'or NEW Yoan, N. Y.'

coaauen'rrin SHEET PILING' Application filed January 20, 1930. Serial No. 422,155.

This invention relates to corrugated sheet metal piling of the type covered by my Patent No. 1,166,563, of January 4, 1916, and has for itsobject certain new and useful improvements thereto.

As in the said patent, the present piling consists of long and narrow sections or piles, which are corrugated longitudinally and so constructed that adjacent sections can Vbe 1 interlocked ley/lateral engagement of their edges. In the present piling, however, the corrugations are semi-circular throughout, the tangents 6 of my said vpatent being omitted. The radii of the corrugations are equal except those of the marginal ones, which are shorter than the radii of the central or body corrugations. Thus, the radii of the latter` may be 11/8 in., while the inside radius of one of the marginal corrugations is 5/8 in.

2 and the outside radius of the other marginal corrugation is 5/g corrugations i of `adjacent sections will fit snugly together. The advantages of this construction are: the over-.all width of the piling section is reduced while the effective width remains `the same, whereby the weight and cost are reduced;'byfthe effective width is meant the distance between center lines of the marginal corrugations of a section; and the edges of the sections are more rigid owing to their smaller radii. 'This is an important improvement, since it happens frequently that the edges become bent or distorted in handling, whereby the joining of adjacent sections is rendered diflicult or even impossible. `In some cases, I may. form a head-on the edges to further stien them. yIn the present piling, I make use of clips secured near one edge of each section to interlock it with the adjacent section, as in my said patent. But difficulty has been encountered with the clips of the patent. by reason of their being bent With these ribs, the clips can be made of the 5 same thickness as the rest o f'the piling and in., so that the marginalA .inforcing ribs 6, purpose stated.

'-are shown as thickened back and it is not desirable toA usev 45 heavier metal on account of the increased yet will be stiff enough to retain their shape permanently.

The invention is illustrated in the accompanying drawing, in which,

'F ig. 1 is a plan view of one sectionand the marginal edges of the two adjoining sections;

Fig. 2 is a front view of the same, partially broken away, Aand Fig. 3 is a detail plan view of the interlocking edges of two sections, showing a slight modification.

Each section is vformed with the semi-circular longitudinal corrugations 2 throughout the major portion of its width and with the marginal corrugations 3 and 4, also semicircular but of `shorter radii, plained. The corrugation 3 of one section fits within the corrugation 4 of the adjoining section. To form the interlock, two or more clips 5 are secured, preferably by elec- "tric welding, to each section adjacent its marginal corrugation 4. The curved tongues ofy these clips lie witl in the corrugation 4, as in my said prior patent. Each clip has one or more, two in the form shown, re-

formed on its back for the In Fig. 3, the extreme edges of the sections or provided with a bead 7 to glive thorn a ditional stiiness.

Having t us described my invention, what I claim is:

Corrugated sheet piling having the marginal'corrugations of lesser radius than those.

of the main body, andv interlocking clips, having stiffenini?,` ribs on their backs, secured to `the body adjacent one of the marginal corrugations, as and for the purpose described.

Signed at New York, in the county of New York and State of New York,.A. D. 1930.

JULIUS R. WEMLINGER.

one or more ribs formed on their back.

as above ex-, 

